Works by GRZEGORZ WIEKIERA

62.01.Z - Computer programming activities

26.20.Z - Manufacture of computers and peripheral equipment

33.13.Z - Repair and maintenance of electronic and optical equipment

45.20.Z - Maintenance and repair of motor vehicles, excluding motorcycles

45.32.Z - Retail trade of motor vehicle parts and accessories, excluding motorcycles

47.41.Z - Retail sale of computers, peripheral units and software in specialised stores

47.91.Z - Retail sale via mail order houses or via Internet

47.99.Z - Other retail sale not in stores, stalls or markets

58.29.Z - Other software publishing

61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

70.22.Z - Business and other management consultancy activities

71.20.B - Other technical testing and analysis

77.11.Z - Rental and leasing of cars and light motor vehicles

82.30.Z - Organisation of conventions and trade shows

85.59.A - Teaching of foreign languages

85.59.B - Other out-of-school forms of education, not elsewhere classified

95.11.Z - Repair and maintenance of computers and peripheral equipment

95.12.Z - Repair and maintenance of (tele)communication equipment